P1109
BARO Sensor Circuit Out of Range High
P1109 is an OBD-II diagnostic trouble code meaning: BARO Sensor Circuit Out of Range High. Common causes: faulty atmospheric pressure sensor (baro), open or short circuit in the sensor circuit. Estimated repair cost: $17–56.
Symptoms
- Check Engine light comes on
- Deterioration in acceleration dynamics
- Increased fuel consumption
- Unstable engine operation at idle
- Problems starting the engine in some cases
Causes
- Faulty atmospheric pressure sensor (BARO)
- Open or short circuit in the sensor circuit
- Poor contact in the sensor connector
- Corrosion or oxidation of contacts
- Engine control unit (ECU) malfunction
How to Fix
- Check the integrity of the wiring and connections of the BARO sensor
- Clean sensor connector contacts
- Check the resistance and output voltage of the sensor
- Replace the faulty BARO sensor if necessary
- Check and replace wiring harness if necessary
Related codes
Error P1109 by Vehicle Brand
FAQ
What does the P1109 code mean?
P1109 is an OBD-II diagnostic trouble code that indicates: BARO Sensor Circuit Out of Range High
What causes a P1109 error code?
The most common causes of P1109 include: Faulty atmospheric pressure sensor (BARO); Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Corrosion or oxidation of contacts.
How do I fix a P1109 diagnostic trouble code?
To fix P1109: Check the integrity of the wiring and connections of the BARO sensor. Clean sensor connector contacts. Check the resistance and output voltage of the sensor. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1109?
Yes, but get it checked soon
How much does it cost to fix P1109?
The estimated repair cost for P1109 is $17–56. Actual cost depends on your vehicle, location, and labor rates.
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